Explicație pas cu pas:
x1^2*x2=x1*x2^2
x1^2/x1 = x2^2/x2
x1=x2=t
x1+x2=2m-1=>t=(2m-1)/2
x1*x2=m+1=>t^2=m+1
=>(2m-1)^2/4=m+1
sau:
Conditie: delta=0
delta=(2m-1)^2-4m-4=0
4m^2-4m+1-4m-4=0
4m^2-8m-3=0
delta=64+48=112
m1=2+radical(7)
m2=2-radical(7)
Bafta!